Add aptkey=False to use pkgrepo.managed without apt-key

[Ch3LL]

What does this PR do?

Allows users to not use apt-key. Apt-key is on a deprecation path right now so this PR adds the ability to use aptkey: False with the pkgrepo.managed state to not use the apt-key cli command. Also if apt-key does not exist `apt-key is not used automatically.

What issues does this PR fix or reference?

Fixes: #59785

[Ch3LL]

re-run all

[waynew]

just a few questions, otherwise from just looking on my phone it looks good

[github-actions]

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Detected Issues (click me)

Check Known Missing Docstrings...........................................Failed
- hook id: invoke
- duration: 1.87s
- exit code: 1
/home/runner/.cache/pre-commit/repo4z_86ibj/py_env-python3/lib/python3.9/site-packages/_distutils_hack/init.py:30: UserWarning: Setuptools is replacing distutils.

warnings.warn("Setuptools is replacing distutils.")

The function 'expand_repo_def' on 'salt/modules/aptpkg.py' does not have a 'CLI Example:' in its docstring

Found 1 errors

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Thanks again!